There's really only 3 contenders
We're down to the final 8, but I can't see how any more than 3 of the remaining contestants could actually win this: Ryan, Heidi and Andrew. Wendy has had far too many low points and is probably next to go, Devin and Paulie have been consistently inconsistent, Kimberly has only shows an ability to argue with people, and Heather...well, maybe Heather could be a contender. We just haven't seen a lot from her yet.
I guess I'd have to go back to the last few seasons, but it seems like this season was seriously short on real contenders. I think it's maybe finally gotten to the point where even I'm losing interest in the show.